Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
4733 ORO (1982 HB2)
Classification: Main-belt Asteroid          SPK-ID: 2004733
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07327876221951068 6.0102e-08  
a 2.185312271404585 9.5504e-09 au
q 2.02517529309295 1.3126e-07 au
i 4.716228886137581 5.7934e-06 deg
node 43.04279902483249 6.4793e-05 deg
peri 158.2870248387329 7.3603e-05 deg
M 231.410441440904 3.6794e-05 deg
tp 2458021.975066887115
(2017-Sep-25.47506689)
0.00012093 JED
period 1179.963799390681
3.23
7.7351e-06
2.118e-08
d
yr
n .305094105586883 2e-09 deg/d
Q 2.345449249716221 1.025e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1384  
   data-arc span      23428 days (64.14 yr)  
   first obs. used      1951-11-30  
   last obs. used      2016-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51476  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:08:44  

Additional Information
 Earth MOID = 1.02175 au 
 Jupiter MOID = 2.61217 au 
 T_jup = 3.669 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO253395  
rotation period rot_per 5.8796 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4733 ORO (1982 HB2)          Discovered 1982-Apr-19 by Oak Ridge Obs. at Harvard
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-02 01:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin